@misc{knoechel_saxs_investigations_1999, 
author={Knoechel, A.,Pranzas, P.K.,Gehrke, R.},
title={SAXS Investigations of Aquatic Humic Substances},
year={1999},
howpublished = {book part},
note = {Online available at: \url{} (DOI). Knoechel, A.; Pranzas, P.; Gehrke, R.: SAXS Investigations of Aquatic Humic Substances. In: HASYLAB Jahresbericht 1999. 1999. 733-734.}}